Update IterationContext to be an IntoContextElement and finish implementing section.

src/renderer/iteration_context.rs

@@ -1,6 +1,9 @@
+use crate::renderer::breadcrumb_tree::BreadcrumbTreeElement;
 use crate::renderer::context_element::CompareContextElement;
 use crate::renderer::context_element::ContextElement;
+use crate::renderer::context_element::IceResult;
 use crate::renderer::context_element::IntoContextElement;
+use crate::renderer::DustRenderer;
 use crate::renderer::Loopable;
 use crate::renderer::RenderError;
 use crate::renderer::Renderable;
@@ -16,7 +19,7 @@ use std::cmp::Ordering;
 /// Functions the same as the injected parameters contexts for
 /// helpers/partials with parameters but this has no need for storing
 /// breadcrumbs since its simply storing two integers.
-#[derive(Debug, Clone)]
+#[derive(Debug)]
 pub struct IterationContext {
     idx: OwnedLiteral,
     len: OwnedLiteral,
@@ -32,32 +35,13 @@ impl IterationContext {
     }
 }
 
-impl ContextElement for IterationContext {}
-
-impl Truthiness for IterationContext {
-    fn is_truthy(&self) -> bool {
-        // TODO: Would this even ever be called? Won't matter, but I'd
-        // like to know. Since it is injected 1 above the current
-        // context, we wouldn't be able to access it with `{.}`.
-        true
-    }
-}
-
-impl Renderable for IterationContext {
-    fn render(&self, _filters: &Vec<Filter>) -> Result<String, RenderError> {
-        // TODO: Would this even ever be called? Won't matter, but I'd
-        // like to know. Since it is injected 1 above the current
-        // context, we wouldn't be able to access it with `{.}`.
-        Ok("[object Object]".to_owned())
-    }
-}
-
-impl Loopable for IterationContext {
-    fn get_loop_elements(&self) -> Vec<&dyn ContextElement> {
-        // TODO: Would this even ever be called? Won't matter, but I'd
-        // like to know. Since it is injected 1 above the current
-        // context, we wouldn't be able to access it with `{.}`.
-        Vec::new()
+impl IntoContextElement for IterationContext {
+    fn into_context_element<'b>(
+        &'b self,
+        renderer: &DustRenderer,
+        breadcrumbs: &'b Vec<BreadcrumbTreeElement<'b>>,
+    ) -> Option<IceResult<'b>> {
+        panic!("into_context_element cannot be called on pseudo elements");
     }
 }
 
@@ -74,15 +58,3 @@ impl Walkable for IterationContext {
         true
     }
 }
-
-impl CompareContextElement for IterationContext {
-    fn equals(&self, other: &dyn ContextElement) -> bool {
-        // TODO: Does this ever happen? perhaps I should have a panic here.
-        false
-    }
-
-    fn partial_compare(&self, other: &dyn ContextElement) -> Option<Ordering> {
-        // TODO: Does this ever happen? perhaps I should have a panic here.
-        None
-    }
-}